Your brain is 80% water.
525
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Hot water can freeze faster than cold water.
181
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75